1. Dept. of Biochemical Engineering; The Advanced Centre for Biochemical Engineering; University College London; Torrington Place London WC1E 7JE U.K.
2. Lonza Biologics Plc.; Slough SL14DX U.K.
3. Parker Hannifin Ltd.; Parker Domnick Hunter, Process Div.; Durham DH3 2SF U.K.
4. Dept. of Chemical Engineering; Centre for Process Systems Engineering, Imperial College London, South Kensington Campus; London SW7 2AZ U.K.